mirror of
https://github.com/scummvm/scummvm.git
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102 lines
2.4 KiB
C++
102 lines
2.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/lua/lua.h"
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#include "common/lua/lauxlib.h"
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#include "common/lua/lualib.h"
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#include "hdb/lua-script.h"
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namespace HDB {
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LuaScript::LuaScript() {
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_state = NULL;
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}
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LuaScript::~LuaScript() {
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if (_state) {
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lua_close(_state);
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}
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}
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bool LuaScript::init() {
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// Create new lua_State and initialize the Std Libs
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_state = luaL_newstate();
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if (!_state || !registerStdLibs()) {
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error("Cannot initialize Lua");
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return false;
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}
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return true;
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}
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bool LuaScript::executeFile(const Common::String &filename) {
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Common::File *file = new Common::File;
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if (!file->open(filename)) {
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error("Cannot find \"%s\"", filename.c_str());
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}
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uint fileSize = file->size();
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const char *fileData = new char[fileSize];
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file->read((void *)fileData, fileSize);
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if (!executeChunk(fileData, fileSize, filename)) {
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delete[] fileData;
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delete file;
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return false;
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}
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delete[] fileData;
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delete file;
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return true;
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}
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bool LuaScript::registerStdLibs() {
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luaL_openlibs(_state);
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return true;
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}
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bool LuaScript::executeChunk(const char *chunk, uint chunkSize, const Common::String &chunkName) const {
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// Compile Chunk
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if (luaL_loadbuffer(_state, chunk, chunkSize, chunkName.c_str())) {
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error("Couldn't compile \"%s\": %s", chunkName.c_str(), lua_tostring(_state, -1));
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lua_pop(_state, -1);
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return false;
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}
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// Execute Chunk
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if (lua_pcall(_state, 0, 0, 0)) {
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error("An error occured while executing \"%s\": %s.", chunkName.c_str(), lua_tostring(_state, -1));
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lua_pop(_state, -1);
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return false;
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}
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return true;
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}
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} |